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Home >> Saab >> 2005 >> 9-5 Linear, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Gauges & Instrument Panels >> Main Instrument Unit >> Technical Description >> Warning and indicator lamps >> Warning lamp, handbrake >> Notes

Warning lamp, handbrake: Notes

Fig 1: Warning Lamp, Handbrake Communication Diagram
G03871042Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Warning Lamp, Handbrake Circuit Diagram
G03871043Courtesy of SAAB-SCANIA OF AMERICA, INC.

The handbrake warning lamp is situated on the RH side of the main instrument unit and informs the driver if the handbrake is applied.

If the oil pressure falls below 0.3-0.5 bar, the oil pressure sensor makes contact, pin 15 in the main instrument unit is grounded and the control module turns on the lamp.

When the handbrake is applied, pin 14 on MIU is grounded by the contact on the brake lever handbrake lever, which means that the control module turns on the lamp.

If the speed exceeds 5 km/h from a speed lower than 5 km/h when the handbrake is applied, the central warning lamp comes on and MIU sends a request to SID to activate the acoustic signal.